2013

7.7

2017

7.9

1999

7.0

2016

7.1

2009

8.1

2016

7.5

1987

6.7

2013

7.9

2009

7.7

2012

7.7

1995

7.2

2020

7.6

1992

7.0

1976

7.9

1996

7.3

2004

7.2

2004

7.7

2015

7.2

1999

7.7

2020

8.1